ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,052, issued on Dec. 16, was assigned to TOYOTA JIDOSHA K.K. (Aichi-Ken, Japan) and AIIN Corp. (Aichi-Ken, Japan).

"Driver state detection device" was invented by Daisuke Akaho (Nagoya, Japan), Makoto Maehara (Nagoya, Japan), Takashi Wakazono (Nagoya, Japan), Kazuhiro Tomosue (Kariya, Japan) and Tsuyoshi Hoshino (Kariya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A driver state detection device provided with a driver monitor camera configured to capture the face of a driver of a vehicle to generate a facial image of the driver and a control device. The control device is configured so as to detect the facial orientation or the line-of-sight ...